Declaration of Variables

At a Glance

The following array shows details on the variables used:

Variable	Type	Definition
Start_4	BOOL	Function start bit
Step_4	INT	Function step
Error_4	INT	Function error code
MngtPrint_4	ARRAY[0..4] of INT	Array of the communication parameters for the `INPUT_CHAR` block
MngtInput_4	ARRAY[0..4] of INT	Array of the communication parameters for the block `PRINT_CHAR`
ReqString_4	STRING	Character string to modem command
AnsString_4	STRING	Character string from modem answer
Out_In_Mbus_4	OUT_IN_MBUS	Instance of the `OUT_IN_MBUS` block
Adr_4	INT	Communication port of the slave PLC
MbusCmd_4[1]	INT	Modbus function code
MbusCmd_4[2]	INT	Quantity of data to read
MbusCmd_4[3]	INT	Modbus address of the slave PLC
MbusCmd_4[4]	INT	Start of the data area from the slave to read
RetryLmt_4	INT	Number of attempts
DataBits_4	INT	Transmission mode (1 for RTU and 0 for ASCII)
RespTout_4	INT	Timeout
Retry_4	INT	Number of attempts made by the block
Active_4	BOOL	The value 1 indicates that the operation was successful.
Done_4	BOOL	The value 1 indicates that the operation was successful.
Flag_Error_4	BOOL	The value 1 indicates that an error has occurred or that the current operation has terminated
Status_4	INT	Status code generated by the block